Spores an conidia(?) (in KOH) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?), collected from white powdery stuff with web from underside leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos a day before. Texas

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College Station, Texas, March 7, 2023

Album 3358: College Station, Texas, March 7, 2023

The image presents a microscopic view of spores and conidia from the sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopognis). The specimen was collected from the underside of squaw-weed leaves in Washington-on-the-Brazos, Texas on March 7, 2023.

**Key Features:**

* **Spores and Conidia:** The image primarily features spores and conidia. Spores are asexual reproductive structures that can be single-celled or multicellular, depending on the fungus species. They often have distinct shapes and sizes, which help in their identification.
* **KOH Mounting:** The specimen is mounted in potassium hydroxide (KOH), a common mounting medium used for microscopic examination of fungal spores and other biological specimens. KOH treatment helps to clear the sample by dissolving cell walls and other materials, providing better visualization under the microscope.
* **Coloration:** The spores appear yellowish-brown to brown in color, which is typical for many fungal species. This coloration may be due to the presence of pigments or the way the KOH treatment affects the sample's appearance.
* **Shape and Size:** While specific details about the shape and size of these spores are not provided, they likely vary in size and have distinct shapes that could aid in their identification based on microscopic characteristics.

**Conclusion:**

The image shows a collection of fungal spores and conidia from the sunflower white rust fungus Pustula tragopogonis. The specimen was collected during a field study and mounted in KOH for examination under the microscope. – AI vision

🇪🇸 Descripción en español / Spanish Description

Muestra esporas y conidios (en KOH) del hongo Pustula tragopogonis de la roya blanca de la granada, recolectado de polvo blanco con red desde el lado inferior de las hojas de zarza (Senecio ampullaceus) en Washington-on-the-Brazos un día antes. Texas, 7 de marzo de 2023. La imagen presenta una vista microscópica de esporas y conidios del hongo Pustula tragopogonis (Pustula obtusata, Albugo tragopognis). El espécimen se recolectó desde el lado inferior de las hojas de zarza en Washington-on-the-Brazos, Texas el 7 de marzo de 2023. **Características clave:** * **Esforas y conidios:** La imagen muestra principalmente esporas y conidios. Las esporas son estructuras reproductoras asexuales que pueden ser unicelulares o multicelulares, dependiendo de la especie de hongo. A menudo tienen formas y tamaños distintivos, lo que ayuda en su identificación. * **Montaje KOH:** El espécimen está montado en hidróxido potásico (KOH), un medio común de montaje utilizado para el examen microscópico de esporas fúngicas y otros especímenes biológicos. El tratamiento con KOH ayuda a clarificar la muestra disolviendo las paredes celulares y otros materiales, proporcionando mejor visualización bajo el microscopio. * **Coloración:** Las esporas aparecen de color marrón amarillento a marrón, lo que es típico para muchas especies de hongos. Este color puede ser debido a la presencia de pigmentos o la forma en que el tratamiento con KOH afecta la apariencia de la muestra. * **Forma y Tamaño:** Aunque no se proporcionan detalles específicos sobre la forma y tamaño de estas esporas, probablemente varían en tamaño y tienen formas distintivas que podrían ayudar a su identificación basándose en características microscópicas. **Conclusión:** La imagen muestra una colección de esporas y conidios fúngicos del hongo Pustula tragopogonis de la roya blanca de la granada. El espécimen se recolectó durante un estudio de campo y se montó en KOH para examen bajo el microscopio. – Spanish translation

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